Recent content by wadesweatt

You basically said this already. Is there anything else you can tell me? I looked up the definition for dB and it is basically the equation I have given to begin with. Still not sure how to get Io, or where to put the 60 in order to find the intensity like the problem asks. Please be clear, some...

Would you explain how to solve for B when you don't know the value for I or Io? Also, the question asks for the intensity...so why am I solving for B? and also, isn't B 60?

what is the Io value? is that some standard value that I am missing? Maybe that's why this is so difficult...it seems like there are too many variables...

I'm a little confused about how to do it? baby steps please?

so I should put this: B=(10dB)log(I/Io) B=(10dB)log(7I/Io) so is it 60=(10dB)log(7I/1)??

Homework Statement if one clarinet is playing a note at a sound level of 60 dB, what is the sound intensity of 7 clarinets playing identically at one time? Homework Equations is B=(10dB)log(I/Io) relevant to this? The Attempt at a Solution I just need to be pointed in the right...

haha yes! I knew that I was just typing in a hurry. Thanks.

Ahhhh so I do change in KE=m(v_f)^2 - m(v_i)^2 , right?

So, using v^2 = v_0^2 + 2a(Delta x), I can find the final velocity I think. For the delta x part, would it be (2.5 - 0)? And can I use KE= 1/2mv^2 to find the kinetic energy? If so, wouldn't I use the final velocity found in part a for "v"? Thanks.

Homework Statement A proton (mass m = 1.67x10^-27 kg) is being accelerated along a straight line at 2.0x10^15 m/s^2 in a machine. The proton has an initial speed of 2.4x10^7 m/s and travels 2.5 cm. (a) What is its speed? (b) What is the increase in its kinetic energy? The Attempt at a...

We don't have a textbook for my class (intro physics), so that makes it a little hard. Thanks for pointing me to the link though. I see that work is the integral of the dot product of force and displacement, and I have had a lot of calculus (none about physics), so I understand what...

I would guess that the work done by a force would mean how much energy is exerted on the object by each one? "how does this apply to each force?" Well, I know that gravitational and normal oppose each other, and that applied and frictional oppose each other.

anybody?

To start, I have the solution to this problem (with included steps) in front of me. Finding the answer is not the problem. What I want to know is, being a beginner in physics, what are the basic thought processes that would cause one to move toward a solution? What does one consider when...

anybody please... it's due in like 15 minutes...